-LRB- CNN -RRB- -- Mark Webber claimed his first victory of 2011 as he relegated his Red Bull teammate Sebastian Vettel to second place in the season-ending race in Brazil .

The Australian took the lead on the 30th lap as Vettel was under team orders to nurse a serious gearbox problem .

Until then , Germany 's Vettel had looked set to cap his triumphant season with his 12th race win .

He had led off his record 15th pole position with Webber taking close order in second place .

But after the first round of pit stops , the technical problem on the normally ever reliable Red Bull of the two-time champion came to light .

McLaren 's Jenson Button overtook Fernando Alonso of Ferrari for the final podium position late in the race to retain second spot in the championship behind Vettel .

Abu Dhabi winner Lewis Hamilton went out with a faulty gearbox in the second McLaren as he bid unsuccessfully for back-to-back victories .

But few could begrudge Webber his belated win , repeating his 2009 success at the same circuit and his seventh career triumph in F1 .

`` Seb did a great lap for pole , but today I had the rub of the green . It would have been nice to have a race with Seb all the way through but he had a problem , '' he told the post-race media conference .

`` I enjoyed the last few laps . It 's always nice when I could pit a bit later than people and cover people off . Nice way to finish , '' he added .

`` It was a real shame for me as I had a good start , '' said Vettel .

Home hope Felipe Massa claimed fifth place in the second Ferrari with Adrian Sutil an excellent sixth for Force India .

Nico Rosberg of Mercedes finished seventh with rookie Paul Di Resta in eighth in the second Force India car .

Kamui Kobayashi of Sauber and Vitaly Petrov for Renault rounded out the point-scoring .

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Red Bull 's Mark Webber claims first win of season at Brazil GP

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Teammate and two-time champion Sebastian Vettel finishes second

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Vettel was leading until his car had gearbox problem